[BUG] Smartsheet MCP get_sheet_summary fails with 404 from smartgate.prod.smar.cloud

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

affects both Claude Code and claude.ai web and get_columns and search still work.

What Should Happen?

Review issue

Error Messages/Logs

Steps to Reproduce

Environment:

• Claude Code CLI (also reproduced on claude.ai web)
• Smartsheet integration connected via claude.ai account integrations

Steps to reproduce:

1. Connect the Smartsheet integration in claude.ai account settings
2. In a Claude conversation, call get_resource_guide with

intents=["smartsheet-intelligence"] (succeeds)

1. Call get_sheet_summary with any valid sheet ID you own, e.g.

sheet_id=6569254460542852

Expected: Sheet rows and cell data returned

Actual: Client error '404 Not Found' for url 'https://api.smargate.prod.smar.c
loud/internal/grid-coordination/sheet-info/<sheet-alphanumeric-id>'

Additional observations:

• Affects all sheets (tried 5 different sheet IDs across multiple workspaces)
• find_in_sheet fails with the same 404 pattern
• get_columns, search, browse_workspace, and list_workspaces all work normally

— only the smargate-backed read tools are broken

• Disconnecting and reconnecting the Smartsheet integration does not resolve

it

• Reproduced on both Claude Code CLI and claude.ai web interface

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Sonnet 4.6

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_